Two separate sites are reporting that they have uncovered the Achievements and Trophies for Assassin's Creed 2 and they are all achievable. They also give you gamer cred or whatever and there's probably a few plays on words in there. They're for the 360 and the PS3... and they have... things. All right, I haven't read them, but considering that the only reason I kept playing the original Assassin's Creed was for the story I'm not about to ruin the second game for myself just so I can then go ahead and ruin it for you.

If you are not afraid of spoilers and other such plot ruining things, then by all means check them out. I can't tell you why we know this, but these are most likely the actual Achievements and Trophies so you've been forewarned. I've posted the list below without looking at it. Go forth and do what you will with the knowledge, I wash my hands of it. I'm sure Ubisoft will confirm or deny these in a matter of days.  

• Master Assassin - Unlock All Trophies (Platinum)
• The Birth of an Assassin - Be reborn as Ezio Auditore Da Firenze. (Bronze, 20G)
• Arrivederci Abstergo - Break out of Abstergo. (Bronze, 20G)
• Welcome to the Animus 2.0 - Enter the Animus 2.0. (Silver, 20G)
• The Pain of Betrayal - Complete DNA Sequence 1. (Silver, 30G)
• Vengeance - Complete DNA Sequence 2. (Silver, 30G)
• Exit the Son - Complete DNA Sequence 3. (Silver, 30G)
• Bloody Sunday - Complete DNA Sequence 4. (Silver, 30G)
• Undertaker - Discover the Assassin's Tomb inside the catacombs under Santa Maria Novella. (Silver, 20G)
• The Conspirators - Complete DNA Sequence 5. (Silver, 30G)
• An Unexpected Journey - Complete DNA Sequence 6. (Silver, 30G)
• Bleeding Effect - Complete training and reenter the Animus. (Silver, 30G)
• The Merchant of Venice - Complete DNA Sequence 7. (Silver, 30G)
• The Impenetrable Palazzo - Complete DNA Sequence 8. (Silver, 30G)
• Masquerade - Complete DNA Sequence 9. (Silver, 30G)
• Bianca's Man - Complete DNA Sequence 10. (Silver, 30G)
• The Prophet - Complete DNA Sequence 11. (Silver, 30G)
• The Vault - Complete DNA Sequence 14. (Silver, 30G)
• An Old Friend Returns - Escape the hideout. (Gold, 100G)
• Myth Maker - Find the 8 statuettes in Monteriggioni. (Bronze, 5G)
• Vitruvian Man - Unlock all 20 pieces of Subject 16's video. (Bronze, 20G)
• Street Cleaner - Hide 5 dead bodies in a Bale of Hay. (Bronze, 10G)
• Fly Swatter - Kick a Guard while using the Flying Machine. (Bronze, 5G)
• Messer Sandman - Stun 4 guards at once by throwing sand in their face. (Bronze, 10G)
• Doctor - Perform an Air Assassination on a Poisoned NPC. (Bronze, 20G)
• No-hitter - Kill 10 enemies while remaining in conflict without being hit. (Bronze, 20G)
• Kleptomaniac - Pickpocket 1000 Florins. (Bronze, 10G)
• Lightning Strike - Sprint for 100 meters. (Bronze, 10G)
• Sweeper - Sweep 5 guards at once by using a Long Weapon. (Bronze, 10G)
• Venetian Gladiator - Discover the Assassin's Tomb inside Santa Maria della Visitazione. (Bronze, 20G)
• I can see your house from here! - Discover the Assassin's Tomb inside the Torre Grossa. (Bronze, 20G)
• Hallowed be thy name - Discover the Assassin's Tomb inside the Basilica di San Marco. (Bronze, 20G)
• Prison Escape - Discover the Assassin's Tomb inside the Rocca di Ravaldino fortress. (Bronze, 20G)
• Choir Boy - Discover the Assassin's Tomb inside Santa Maria del Fiore (The Duomo). (Bronze, 20G)
• Assassin For Hire - Complete your first assassination mission for Lorenzo Il Magnifico. (Bronze, 10G)
• Macho Man - Defend a woman's honor. (Bronze, 10G)
• Steal Home - Win a race against thieves! (Bronze, 10G)
• Show your Colors - Wear the Auditore cape in each city. (Bronze, 10G)
• Handy Man - Upgrade a building in the Stronghold. (Bronze, 10G)
• I like the view - Synchronize 10 View Points. (Bronze, 10G)
• High Dive - Perform a Leap of Faith from the Top of Florence's Giotto's Campanile. (Bronze, 10G)
• Mailman - Intercept a Borgia Courrier. (Bronze, 10G)
• Tip of the Iceberg - Use your Eagle Vision to scan a Glyph in the environment. (Bronze, 10G)
• A Piece of the Puzzle - Unlock a piece of Subject 16's video. (Bronze, 10G)
• Art Connoisseur - Buy a Painting from Florence and Venice. (Bronze, 10G)
• Podestà of Monteriggioni - Reach 80% of your stronghold's total value. (Bronze, 30G)
• Perfect Harmony - Tint your clothes with those colors: Wetland Ebony and Wetland Ivory. (Bronze, 10G)
• In Memory of Petruccio - Collect all the Feathers. (Bronze, 30G)
• Red Light Addict - Spend 5000 florins on Courtesans. (Bronze, 10G)
• Man of the People - Toss more than 300 florins on the ground. (Bronze, 10G)
• Victory lies in preparation - Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio. (Bronze, 10G)